Producer Mark Ronson struggles to understand why people are so shocked by his pal Amy Winehouse's hedonistic behaviour - because she warned fans "she was trouble" in one of her songs. Ronson - who teamed up with Winehouse on his version of The Zutons song Valerie - refuses to be drawn into the scathing criticism of her drug problems, insisting she's always acknowledged her flaws. And the Grammy winner cites Winehouse's tune I'm No Good as a blatant example of her honesty. He says, "I don't (think) that she's misunderstood. Go from what she said in the song, she told you she was trouble. She puts it out there. She's not hiding anything."